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Direct linkYildiz, Gizem Y.; Vilsten, Julian S.; Millard, Amy Siobhan; Chouinard, Philippe A. – Journal of Autism and Developmental Disorders, 2021
We examined whether functional and structural variability in the primary visual area (V1) correlated with autism traits. Twenty-nine participants (16 males; M[subscript Age] = 26.4 years, SD[subscript Age] = 4.0 years) completed the autism-spectrum quotient (AQ) questionnaire prior to a magnetic resonance imaging session. The total AQ scores was…
Descriptors: Autism, Pervasive Developmental Disorders, Brain Hemisphere Functions, Visual Stimuli
Neely, Kristina A.; Mohanty, Suman; Schmitt, Lauren M.; Wang, Zheng; Sweeney, John A.; Mosconi, Matthew W. – Journal of Autism and Developmental Disorders, 2019
Sensorimotor abnormalities are common in individuals with autism spectrum disorder (ASD); however, the processes underlying these deficits remain unclear. This study examined force production with and without visual feedback to determine if individuals with ASD can utilize internal representations to guide sustained force. Individuals with ASD…
Descriptors: Autism, Pervasive Developmental Disorders, Feedback (Response), Visual Stimuli
Irwin, Julia; Avery, Trey; Kleinman, Daniel; Landi, Nicole – Journal of Autism and Developmental Disorders, 2022
Children with autism spectrum disorders have been reported to be less influenced by a speaker's face during speech perception than those with typically development. To more closely examine these reported differences, a novel visual phonemic restoration paradigm was used to assess neural signatures (event-related potentials [ERPs]) of audiovisual…
Descriptors: Autism, Pervasive Developmental Disorders, Diagnostic Tests, Brain Hemisphere Functions
Manfredi, Mirella; Cohn, Neil; Sanchez Mello, Pamella; Fernandez, Elizabeth; Boggio, Paulo Sergio – Journal of Autism and Developmental Disorders, 2020
We examined semantic processing in ASD children by presenting sentences with congruent or incongruent final words and visual narratives with congruent or incongruent final panels. An N400 effect to incongruent words appeared as compared to congruent ones, which was attenuated for the ASD children. We observed a negativity sustained to incongruous…
Descriptors: Semantics, Brain Hemisphere Functions, Autism, Pervasive Developmental Disorders
Kovarski, Klara; Mennella, Rocco; Wong, Simeon M.; Dunkley, Benjamin T.; Taylor, Margot J.; Batty, Magali – Journal of Autism and Developmental Disorders, 2019
Research on Autism Spectrum Disorder (ASD) has focused on processing of socially-relevant stimuli, such as faces. Nonetheless, before being 'social', faces are visual stimuli. The present magnetoencephalography study investigated the time course of brain activity during an implicit emotional task in visual emotion-related regions in 19 adults with…
Descriptors: Autism, Pervasive Developmental Disorders, Visual Stimuli, Diagnostic Tests
McLaughlin, Christopher S.; Grosman, Hannah E.; Guillory, Sylvia B.; Isenstein, Emily L.; Wilkinson, Emma; Trelles, Maria del Pilar; Halpern, Danielle B.; Siper, Paige M.; Kolevzon, Alexander; Buxbaum, Joseph D.; Wang, A. Ting; Foss-Feig, Jennifer H. – Autism: The International Journal of Research and Practice, 2021
A common example of social differences in autism spectrum disorder is poor modulation of reciprocal gaze, including reduced duration of eye contact and difficulty detecting the aim of another's gaze. It remains unclear, however, whether such differences are specific to the social domain, or are instead indicative of broader alterations in…
Descriptors: Attention Control, Autism, Pervasive Developmental Disorders, Eye Movements
Goh, Kwang Leng; Morris, Susan; Parsons, Richard; Ring, Alexander; Tan, Tele – Journal of Autism and Developmental Disorders, 2018
Autism is associated with differences in sensory processing and motor coordination. Evidence from electroencephalography suggests individual perturbation evoked response (PER) components represent specific aspects of postural disturbance processing; P1 reflects the detection and N1 reflects the evaluation of postural instability. Despite the…
Descriptors: Adults, Physiology, Autism, Pervasive Developmental Disorders
Kleinhans, Natalia M.; Richards, Todd; Greenson, Jessica; Dawson, Geraldine; Aylward, Elizabeth – Journal of Autism and Developmental Disorders, 2016
Abnormal fMRI habituation in autism spectrum disorders (ASDs) has been proposed as a critical component in social impairment. This study investigated habituation to fearful faces and houses in ASD and whether fMRI measures of brain activity discriminate between ASD and typically developing (TD) controls. Two identical fMRI runs presenting masked…
Descriptors: Autism, Pervasive Developmental Disorders, Antisocial Behavior, Human Body
Kovarski, K.; Thillay, A.; Houy-Durand, E.; Roux, S.; Bidet-Caulet, A.; Bonnet-Brilhault, F.; Batty, M. – Journal of Autism and Developmental Disorders, 2016
Autism spectrum disorder (ASD) is characterized by atypical visual perception both in the social and nonsocial domain. In order to measure a reliable visual response, visual evoked potentials were recorded during a passive pattern-reversal stimulation in adolescents and adults with and without ASD. While the present results show the same…
Descriptors: Adolescents, Visual Perception, Autism, Pervasive Developmental Disorders
English, Michael C. W.; Maybery, Murray T.; Visser, Troy A. W. – Journal of Autism and Developmental Disorders, 2015
Individuals with autism spectrum conditions attend less to the left side of centrally presented face stimuli compared to neurotypical individuals, suggesting a reduction in right hemisphere activation. We examined whether a similar bias exists for non-facial stimuli in a large sample of neurotypical adults rated above- or below-average on the…
Descriptors: Autism, Pervasive Developmental Disorders, Brain Hemisphere Functions, Interpersonal Competence
Herrington, John D.; Riley, Meghan E.; Grupe, Daniel W.; Schultz, Robert T. – Journal of Autism and Developmental Disorders, 2015
This study examines whether deficits in visual information processing in autism-spectrum disorder (ASD) can be offset by the recruitment of brain structures involved in selective attention. During functional MRI, 12 children with ASD and 19 control participants completed a selective attention one-back task in which images of faces and houses were…
Descriptors: Visual Perception, Cognitive Processes, Autism, Pervasive Developmental Disorders
Bowler, Dermot M.; Gaigg, Sebastian B.; Gardiner, John M. – Journal of Autism and Developmental Disorders, 2014
Diminished episodic memory and diminished use of semantic information to aid recall by individuals with autism spectrum disorder (ASD) are both thought to result from diminished relational binding of elements of complex stimuli. To test this hypothesis, we asked high-functioning adults with ASD and typical comparison participants to study grids in…
Descriptors: Adults, Autism, Pervasive Developmental Disorders, Memory
Swartz, Johnna R.; Wiggins, Jillian Lee; Carrasco, Melissa; Lord, Catherine; Monk, Christopher S. – Journal of the American Academy of Child & Adolescent Psychiatry, 2013
Objective: Amygdala habituation, the rapid decrease in amygdala responsiveness to the repeated presentation of stimuli, is fundamental to the nervous system. Habituation is important for maintaining adaptive levels of arousal to predictable social stimuli and decreased habituation is associated with heightened anxiety. Input from the ventromedial…
Descriptors: Anatomy, Autism, Habituation, Visual Stimuli
Rahko, Jukka S.; Paakki, Jyri-Johan; Starck, Tuomo H.; Nikkinen, Juha; Pauls, David L.; Katsyri, Jari V.; Jansson-Verkasalo, Eira M.; Carter, Alice S.; Hurtig, Tuula M.; Mattila, Marja-Leena; Jussila, Katja K.; Remes, Jukka J.; Kuusikko-Gauffin, Sanna A.; Sams, Mikko E.; Bolte, Sven; Ebeling, Hanna E.; Moilanen, Irma K.; Tervonen, Osmo; Kiviniemi, Vesa – Journal of Autism and Developmental Disorders, 2012
FMRI was performed with the dynamic facial expressions fear and happiness. This was done to detect differences in valence processing between 25 subjects with autism spectrum disorders (ASDs) and 27 typically developing controls. Valence scaling was abnormal in ASDs. Positive valence induces lower deactivation and abnormally strong activity in ASD…
Descriptors: Autism, Scaling, Diagnostic Tests, Pervasive Developmental Disorders
Yamasaki, Takao; Fujita, Takako; Ogata, Katsuya; Goto, Yoshinobu; Munetsuna, Shinji; Kamio, Yoko; Tobimatsu, Shozo – Research in Autism Spectrum Disorders, 2011
People with autism spectrum disorder (ASD) often show inferior global motion performance with superior performance in detail form perception, suggesting dysfunction of the dorsal visual stream. To elucidate the neural basis of impaired global motion perception in ASD, we measured psychophysical threshold and visual event-related potentials (ERPs)…
Descriptors: Visual Stimuli, Autism, Motion, Pervasive Developmental Disorders
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